HySecurity MX3683, PUMP PK,RPLCMT,4.0, BIODEG SAM
The HySecurity MX3683 is a 4.0 GPM biodegradable hydraulic pump pack for select HySecurity / Nice HySecurity StrongArm M30 and StrongArm M50 barrier arm applications with 12-18 ft clear openings. This pump pack is used where the current HySecurity parts diagram or service information calls for the biodegradable replacement pump pack version.
HySecurity documentation lists MX3683 as the biodegradable pump pack for StrongArm M30/M50 standard powered models with 12-18 ft arms. Because hydraulic pump packs are configuration-specific, the clear opening, flow rate, hydraulic fluid type, hose style, coupler, hydraulic circuit, motor arrangement, and parts diagram should all be verified before replacement.
What This Pump Pack Does
The MX3683 pump pack provides hydraulic flow for compatible StrongArm M30/M50 barrier arm systems using biodegradable hydraulic fluid. In a properly operating hydraulic barrier, the pump pack works with the motor, manifold, valves, reservoir, hoses, fittings, cylinder assembly, and arm hardware to raise and lower the barrier arm in a controlled manner.
The 4.0 GPM flow rating, 12-18 ft clear-opening designation, and biodegradable-fluid configuration are all important. Installing the wrong pump pack can affect arm speed, hydraulic pressure behavior, cycle performance, hold control, and long-term reliability.
Compatible With
This pump pack may be used with the following applications where the current HySecurity parts diagram confirms MX3683:
- Select HySecurity StrongArm M30 barrier arm applications with 12-18 ft clear openings and biodegradable hydraulic fluid configuration
- Select HySecurity StrongArm M50 barrier arm applications with 12-18 ft clear openings and biodegradable hydraulic fluid configuration
- Powered StrongArm M30/M50 standard hydraulic panel repairs where the parts diagram lists MX3683
- Repairs where the original pump pack is marked, listed, or cross-referenced as MX3683
- Applications requiring a 4.0 GPM pump pack with matching motor, hydraulic circuit, hoses, fittings, reservoir, and biodegradable hydraulic fluid setup
Important: Do not assume MX3683 fits every StrongArm M30/M50 unit. This part is associated with 12-18 ft powered M30/M50 applications using biodegradable hydraulic fluid. Longer clear openings, standard-fluid systems, no-power NP models, and other StrongArm families may use different pump packs.
Similar Parts That Are Not Interchangeable
StrongArm M30/M50 pump packs are configuration-specific. Clear opening, flow rate, hydraulic fluid type, powered versus no-power configuration, hose ends, motor coupler, pump arrangement, and manifold connection all matter.
| Part Number | Common Description | Interchangeability Note |
| MX3683 | 4.0 GPM biodegradable pump pack for StrongArm M30/M50, 12-18 ft | Correct where MX3683 is listed for the 12-18 ft biodegradable powered M30/M50 configuration |
| MX3682 | 3.1 GPM biodegradable pump pack for StrongArm M30/M50, 20-24 ft | Longer clear-opening biodegradable version; not the same as MX3683 |
| MX3614 | 4.0 GPM standard-fluid pump pack for StrongArm M30/M50, 12-18 ft | Same clear-opening and flow group, but not the biodegradable-fluid version |
| MX3613 | 3.1 GPM standard-fluid pump pack for StrongArm M30/M50, 20-24 ft | Different clear-opening and fluid configuration |
| MX3688-02 | 4.0 GPM biodegradable pump pack for StrongArm M30/M50 NP no-power, 12-18 ft | No-power NP version; not the same powered pump pack as MX3683 |
Not Intended For
- Standard-fluid StrongArm M30/M50 applications requiring MX3613 or MX3614
- StrongArm M30/M50 applications with 20-24 ft clear openings that require MX3682
- StrongArm M30/M50 NP no-power models that require MX3687-series or MX3688-series pump packs
- StrongArmPark, StrongArm 36, StrongArm DOT, HydraWedge, HydraSwing, SlideDriver, SlideSmart, SwingSmart, SwingRiser, bollard, or wedge applications
- Generic hydraulic pump replacement outside confirmed HySecurity StrongArm M30/M50 applications
- Repairs where the issue is caused by the manifold, valves, reservoir, hoses, fittings, motor, coupler, cylinder, fluid contamination, or arm binding instead of the pump pack
Important Compatibility Warning
The MX3683 pump pack is tied to StrongArm M30/M50 applications with 12-18 ft clear openings and biodegradable hydraulic fluid. Do not select this pump pack based only on the StrongArm model name. The clear opening, powered versus no-power configuration, hydraulic fluid type, pump flow rate, hose style, motor coupler, manifold, and hydraulic circuit must match.
Biodegradable hydraulic fluid should not be mixed casually with standard hydraulic fluid. If the system has been serviced before, verify the current fluid type, reservoir condition, hose condition, and maintenance history before ordering this biodegradable pump pack. If the operator is in a cold-climate site, confirm the hydraulic fluid is suitable for the site conditions.
If the barrier arm is slow, weak, noisy, leaking, drifting, or not moving, do not assume the pump pack is the only failed part. Check the motor, motor coupler, reservoir, hydraulic fluid, hoses, fittings, manifold, brake valve, relief valve, flow controls, cylinder assembly, pins, bearings, and arm hardware before replacing the pump pack.
Features & Specifications
| Feature / Specification | Details |
| Manufacturer | HySecurity / Nice HySecurity |
| Part Number | MX3683 |
| Product Type | Hydraulic pump pack |
| Flow Rate | 4.0 GPM |
| Fluid Configuration | Biodegradable hydraulic fluid configuration |
| Common Description | Pump Pack Replacement, 4.0 GPM, Biodegradable, SAM |
| Verified Description | Pump Pack, Biodegradable, StrongArm M30/M50, 12-18 ft |
| Common Operator Family | Select HySecurity StrongArm M30/M50 powered applications where specified |
| Clear Opening | 12-18 ft applications where listed by HySecurity |
| Hydraulic Considerations | Fluid type, reservoir, manifold, valves, hose routing, fittings, coupler, motor, cylinder, and arm mechanics must be verified during service |
| Package Contents | Confirm included hoses, quick disconnects, motor coupler, fittings, seals, and mounting hardware before ordering |
Also Known As / Related Part Numbers
- MX3683
- MX-3683
- HySecurity MX3683
- Nice HySecurity MX3683
- HYS-MX3683
- HYS MX3683
- HySecurity Pump Pack Replacement, 4.0 GPM, Biodegradable, SAM
- HySecurity Pump Pack, Biodegradable, StrongArm M30/M50, 12-18 ft
- HySecurity 4.0 GPM Biodegradable Pump Pack, StrongArm M30/M50, 12-18 ft
- StrongArm M30/M50 4.0 GPM Biodegradable Pump Pack
- StrongArm M30/M50 Biodegradable Pump Pack, 12-18 ft Clear Opening
- MX3682 - related biodegradable 3.1 GPM pump pack for 20-24 ft, not the same clear-opening configuration
- MX3614 - related standard-fluid 4.0 GPM pump pack for 12-18 ft, not the same fluid configuration
- MX3613 - related standard-fluid 3.1 GPM pump pack for 20-24 ft, not the same clear-opening or fluid configuration
- MX3688-02 - related biodegradable no-power NP pump pack for 12-18 ft, not the same powered configuration
- MX3688-01 - related biodegradable no-power NP pump pack for 20-24 ft, not the same configuration
- MX3687-02 - related standard-fluid no-power NP pump pack for 12-18 ft, not the same powered configuration
- MX3687-01 - related standard-fluid no-power NP pump pack for 20-24 ft, not the same configuration
Related Parts and Accessories
- MX3614 related standard-fluid StrongArm M30/M50 pump pack for 12-18 ft clear-opening applications where specified
- MX3682 related biodegradable StrongArm M30/M50 pump pack for 20-24 ft clear-opening applications where specified
- MX002054 motor coupler where the coupler is worn, stripped, or damaged
- MX002393 hydraulic reservoir where the reservoir is damaged or contaminated, depending on the current parts diagram
- MX002837 brake-close manifold where brake/hold control is the issue
- MX000657 brake valve where valve condition is confirmed as the cause
- MX002605 position sensing cylinder assembly where cylinder performance or position sensing is the issue
- MX002381 upper cylinder pin and MX002382 lower cylinder pin where cylinder mounting hardware is worn
- Hydraulic hoses, fittings, seals, and approved biodegradable hydraulic fluid matched to the StrongArm M30/M50 system
Technician Note
Before replacing the MX3683 pump pack, inspect the complete StrongArm M30/M50 hydraulic system. A slow, weak, noisy, or non-moving barrier arm can be caused by pump wear, but it can also be caused by low hydraulic fluid, contaminated fluid, air in the system, hose restrictions, leaking fittings, valve issues, a damaged motor coupler, motor problems, cylinder bypass, or mechanical binding in the arm assembly.
Fluid type matters. MX3683 is the biodegradable-fluid version for 12-18 ft powered StrongArm M30/M50 systems. If the operator was previously serviced with standard hydraulic fluid, confirm the current fluid type and whether the system requires cleaning, draining, or related fluid service before installing the replacement pump pack.
Before Ordering, Confirm
- The original or required part number is MX3683.
- The operator is a HySecurity StrongArm M30 or StrongArm M50 application.
- The clear opening is 12-18 ft.
- The application is the powered M30/M50 pump pack configuration, not an NP no-power hydraulic panel.
- The system uses the biodegradable hydraulic fluid configuration.
- The current HySecurity parts diagram lists MX3683 for the pump pack position.
- The motor, coupler, manifold, reservoir, hoses, fittings, valves, cylinder, and hydraulic fluid match the original configuration.
- The issue is not caused by low fluid, contaminated fluid, air in the system, valve trouble, hose restriction, motor failure, coupler damage, cylinder bypass, or arm binding.
- The package contents include the pump pack, hoses, quick disconnects, coupler, and any hardware needed for the repair, or related parts are being ordered separately.
- The system has not been modified with non-original hydraulic components, hose routing, or pump pack hardware.
Installation and Service Notes
- Disconnect power and follow proper lockout procedures before servicing the barrier operator.
- Relieve hydraulic pressure according to the operator service procedure before removing hoses, fittings, valves, or pump pack components.
- Mark all hydraulic hoses and ports before disassembly to prevent crossed lines during installation.
- Cap or protect open hydraulic ports and hoses to keep dirt, water, and debris out of the system.
- Use only the correct fittings, seals, couplers, hoses, and approved biodegradable hydraulic fluid for the StrongArm M30/M50 hydraulic circuit.
- Do not mix biodegradable and standard hydraulic fluid unless the system has been properly serviced and verified for the intended fluid type.
- Do not adjust or defeat brake valves, relief valves, flow controls, pressure controls, or hydraulic safeguards without following HySecurity service procedures.
- After installation, check for leaks, correct pump operation, smooth arm movement, controlled raising and lowering, and proper hold behavior.
- Test all required safety devices, vehicle detection, access-control inputs, arm movement, limits, and operator protections before returning the barrier to service.
Professional Advisory
The MX3683 is a hydraulic pump pack used in a heavy StrongArm M30/M50 barrier system. Service should be performed by a qualified gate technician when the repair involves hydraulic pressure, pump pack replacement, biodegradable fluid service, valve diagnosis, motor/coupler service, cylinder movement, pressure behavior, heavy barrier arm movement, or unknown prior modifications.
Do not bypass hydraulic controls, relief valves, brake valves, flow controls, controller protections, vehicle detection, safety devices, disconnects, or barrier safeguards to keep the system operating. If the barrier arm lowers unpredictably, will not hold position, binds, leaks, or cannot be controlled safely, the system should be inspected before continued use.
Product Questions & Answers
What is the HySecurity MX3683?
The HySecurity MX3683 is a 4.0 GPM biodegradable hydraulic pump pack for select StrongArm M30/M50 barrier arm applications with 12-18 ft clear openings.
Does MX3683 fit both StrongArm M30 and StrongArm M50?
MX3683 is listed for StrongArm M30/M50 applications with 12-18 ft clear openings, but fitment should still be verified by operator model, serial number, and current HySecurity parts diagram.
Is MX3683 the same as MX3614?
No. MX3683 is the biodegradable-fluid 4.0 GPM pump pack for 12-18 ft applications. MX3614 is the related standard-fluid 4.0 GPM pump pack for 12-18 ft applications.
Is MX3683 the same as MX3682?
No. MX3683 is for 12-18 ft biodegradable applications. MX3682 is the related 3.1 GPM biodegradable pump pack for 20-24 ft applications.
Is MX3683 the same as a no-power NP pump pack?
No. MX3683 is not the same as the M30/M50 NP no-power pump packs. NP versions such as MX3687-01, MX3687-02, MX3688-01, and MX3688-02 are different configurations.
What should be checked before replacing the MX3683 pump pack?
Check hydraulic fluid type, fluid level, fluid condition, hoses, fittings, motor coupler, motor operation, manifold valves, cylinder condition, arm hardware, and whether the barrier arm moves freely before replacing the pump pack.
Should a technician install the MX3683 pump pack?
Yes. This repair involves hydraulic pressure, biodegradable hydraulic fluid, pump pack service, motor/coupler alignment, heavy barrier arm movement, and safety testing, so it should be handled by a qualified gate technician.
